Then use Quibi or CNN+ as examples. The principle is the same and my point is spot on correct.
or this:
"Digg
Digg.com is still going, but is a shadow of its former success after a well-documented spiral into relative obscurity. Digg was originally a social site where users could share content they discovered online in a manner similar to Reddit. All was well until Digg introduced a huge update (with the aim of becoming more ‘Twitter like’) that removed many of the social elements that had previously made it such a success. Not only did this defeat the original objective of the site, but it incensed the existing fan-base so much that many of them jumped ship.
The lesson in this case is to know your audience and to stick to your mission statement. About turns will not be tolerated."
And this:
Google Answers
Even Google is not without its failures. Google Answers for instance, was a ‘knowledge market’ where users could pay other users to carry out searches for them and retrieve data. Unfortunately this created a breeding ground for plagiarism, uncertain legality and cheating on homework. All this led to the feature being shut down in 2006, four years after its introduction. Whenever you introduce a new online tool, make sure you consider all the ways it might be used!
Market Data 
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